(a) When the Court Affirms. Unless the law provides otherwise provided by law, if a judgment for money in a civil case is affirmed, whatever interest is allowed by law shall beis payable from the date the judgment was entered in the trialdistrict court.

(b) When the Court Modifies or Reverses. If a judgment is modified or reversed with a direction that a judgment for money be entered in the trialdistrict court, the mandate shallmust contain instructions with respect toabout the allowance of interest.

EXPLANATORY NOTE

Rule 37 was amended, effective .

This rule is taken, without substantial change, from Fed.R.App.P. 37.

Rule 37 was amended, effective __________________. The language and organization of the rule were changed to make the rule more easily understood and to make style and terminology consistent throughout the rules.